package com.ttmall.common.valid;

import javax.validation.ConstraintValidator;
import javax.validation.ConstraintValidatorContext;
import java.util.Arrays;
import java.util.HashSet;
import java.util.Set;

public class ListValueConstraintValidator implements ConstraintValidator <ListValue , Integer>{
    private Set<Integer> set = new HashSet<>();
    // 初始化方法
    @Override
    public void initialize(ListValue constraintAnnotation) {
       // ConstraintValidator.super.initialize(constraintAnnotation);
        int[] vals = constraintAnnotation.vals();

        Arrays.stream(vals)
                .forEach(set::add);
    }


    /**
     * 判断校验是否成功
     * @param value 需要校验的值
     * @param context
     * @return
     */
    @Override
    public boolean isValid(Integer value, ConstraintValidatorContext context) {
        return set.contains(value);
    }
}
